alternative location for wg
 

here is a manifold and dp i just finished. i figured it might save room and pipe if i put the wg tucked under the #4 runner. it turned out not too bad.

http://i47.photobucket.com/albums/f1...h/DSC07107.jpg
http://i47.photobucket.com/albums/f1...h/DSC07105.jpg
http://i47.photobucket.com/albums/f1...h/DSC07106.jpg
http://i47.photobucket.com/albums/f1...h/DSC07114.jpg

Re: alternative location for wg
 

looks good, seen it a few times. nice execution as always.

Re: alternative location for wg
 

omfg dude that is beautiful :'(

i'd take that over full race any day :y

Re: alternative location for wg
 

Nice bolt clearance... I like :y

Re: alternative location for wg
 

oh ya powerfist engine stands ;D
where steel toe shoes or :o

Re: alternative location for wg
 

Thats clean as hell. :)

Re: alternative location for wg
 

That's a bitchin transition to the DP 8)

Re: alternative location for wg
 

That's a bitchin wastegate also.

Re: alternative location for wg
 

Very sweet indeed!

Re: alternative location for wg
 

The WG location I don't see as anything special. It should work fine. I do think the WG should not be plumbed into the DP so early. It will create quite a bit of turbulance around the turbine which will reduce the efficiency of the turbine. Routing it into the exhaust is fine, but so close to the turbine, not so much. The only benefit I can see with this method is the fact flex pipe isn't needed on the dump tube.

Re: alternative location for wg
 

i just skeeted in my pants :6

Re: alternative location for wg
 

but does it really matter how efficient the turbine wheel is when the wg is open? when the wg is open, exhaust gas will be exiting through both the turbine and the wg because full boost has been reached- so why would it matter? i would imagine you'd want your turbine to be as efficient as possible when trying to attain full boost, not as critical after the wg is open. am i missing something?

if you are refering to just the fact that the shape of the pipe will generally create turbulence due to the wg's proximity to the turbine then yes, perhaps it might, but the transition is so smooth i can't see it being that much of a problem on a car that will probably only see 8psi. on a car that is seeing 25+psi it may have more of an impact, but then again, cars running that kind of pressure usually have open dump tubes don't they.

Re: alternative location for wg
 

Turbine efficiency is ultra important always. If your turbine does a poor job displacing exhaust then there is a significantly higher chance of reversion. You are increasing back pressure right in front of the turbine. This makes the air not want to leave the exhaust manifold as much and when it does, it cannot leave as quickly because of the WG dumping into its path. I'm not saying its going to cost a lot of horsepower, but I'm fairly certain if you routed it into the downpipe further back, you would see an increase in power.

Re: alternative location for wg
 

That is a nice piece. good job.

Re: alternative location for wg
 

oh god damn why does there always have to be the one hater. shits pimp, its probably going on a street car...i promis it wont make that much of a difference... bitchin ass manifold though boss!!!!!

Re: alternative location for wg
 

As always, Nice Work Aaron. We have to come see some of this work in person soon!!!

As to this, we have 4 PF Engine stans for about 3-4 year with not problems. Princess Auto is the ----!!!!!

Re: alternative location for wg
 

+1

Re: alternative location for wg
 

I like it

Re: alternative location for wg
 

Correct, a friend with a gt3076r on his srt4 noticed the same.

With the wg dumped into the exhaust closer to the o2 housing area... (I guess the first bend in your downpipe off the flange)... It actually sucked away 35whp because it was creating turbulence in the exhaust.

Remove the merge into the exhaust.. picked up a muffler that they put on 2 stroke dirtbikes... and ran the wg dump through that muffler and out... quieted it down.. and he gained that 35 back.

Re: alternative location for wg
 

Re: alternative location for wg
 

Two post ^ :S

Re: alternative location for wg
 

:\ yeah and I couldn't delete either of them. :S

Re: alternative location for wg
 

I think it's in corkey bell's book that it needs to be 16" away from the turbocharger for the WG to merge back in.

Re: alternative location for wg
 

that looks like pimp ----. i do have 2 concerns abuot it though. one, it looks like you dont have gaskets on the flanges. if you fabbed it w/o gaskets then when you put gaskets on it will throw off your alignment. hopefully they are there and i just cant see them.

my 2nd concern is that expansion with cause cracking. maybe with a longer dump tube things could flex a little more. none the less your fabrication skills are tits and i am glad to finally see someone routing their dump tube back into the exhaust.

Re: alternative location for wg
 

LOL!

I dont see a problem with the dump placement. I mean, look at an internally gated turbo.

Re: alternative location for wg
 

I sware sometimes you guys are so ---- about some bullshit :X this isn't honda-tech. nice work weir

Re: alternative location for wg
 

It doesn't help him at all just to tell him his work looks tits. Its clear he didn't understand that dumping so early would effect power in a negative fashion. Now next time he can keep it in mind and try to make his design more efficient. I don't understand why its bad to constantly try to improve and you will never do that if you never learn from your mistakes.

Re: alternative location for wg
 

that ---- is nice, solid work.

Re: alternative location for wg
 

thats true, but I'm sure its also annoying when you have 10 tunar bois on the internet who aren't doing anything nitpicking your work constnatly about things that don't make that much of a difference on a street car. Yes, it may not be "optimal" but it doesn't matter that much.

Re: alternative location for wg
 

exactly my point earlier... this setup probably won't see more than 8-10psi so i don't imagine it will have a significant enough impact to cause a drastic loss. had it been a full-on drag engine then the whole thing would have been different from manifold to downpipe to dumptube. :P